// Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use std::ffi::CStr;
use std::mem;

use ffi;
use glib::translate::*;

#[repr(C)]
#[derive(Debug)]
pub struct SDPBandwidth(pub(crate) ffi::GstSDPBandwidth);

impl SDPBandwidth {
    pub fn new(bwtype: &str, bandwidth: u32) -> Result<Self, ()> {
        assert_initialized_main_thread!();
        unsafe {
            let mut bw = mem::zeroed();
            let result = ffi::gst_sdp_bandwidth_set(&mut bw, bwtype.to_glib_none().0, bandwidth);
            match result {
                ffi::GST_SDP_OK => Ok(SDPBandwidth(bw)),
                _ => Err(()),
            }
        }
    }

    pub fn bwtype(&self) -> &str {
        unsafe { CStr::from_ptr(self.0.bwtype).to_str().unwrap() }
    }

    pub fn value(&self) -> u32 {
        self.0.bandwidth as u32
    }
}

impl Drop for SDPBandwidth {
    fn drop(&mut self) {
        unsafe {
            ffi::gst_sdp_bandwidth_clear(&mut self.0);
        }
    }
}